However, I can’t help but think adding big name musicians isn’t going to fill the Simon Cowell void. None of the parade of celebs whose names have been attached to Idol seem like the ones to dish out that infamous brutal honesty. PR-concerned celebs unfortunately don’t have the leverage to whip it out like behind-the-scenes man Simon does. Let’s hope Tyler, pictured performing with Aerosmith at Fenway Park on Aug. 14, can at least try to help fill the Simon-shaped hole in us Idol-watcher’s hearts. And maybe stop all this judge musical-chairs…